Flow-Based Image Abstraction (IEEE TVCG 09)

*NPR 描述silhouette and color

*Line extraction & Region
smoothing

*利用DOG抓LINE
SHARP

*沿著ETF做DOG,有較佳的SHARP

*FDOG=ETF+DOG

*目的:CARTOON
STYLE

*REGION SMOOTHING:處理卡通色塊般的著色